[llvm] [LoopVectorize] Vectorize select-cmp reduction pattern for increasing integer induction variable (PR #67812)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

Thanks for following up on all the comments, the last remaining thing to clarify from my side is what costs we currently assign to the new reduction kinds? 

We should probably have a few target-dependent tests that check cost-modeling.

https://github.com/llvm/llvm-project/pull/67812